EP 3623846 A1 20200318 - A SUPPLEMENTAL SYSTEM FOR A SATELLITE BASED APPROACH DURING LOW VISIBILITY CONDITIONS
Title (en)
A SUPPLEMENTAL SYSTEM FOR A SATELLITE BASED APPROACH DURING LOW VISIBILITY CONDITIONS
Title (de)
ZUSATZSYSTEM FÜR EINEN SATELLITENGESTÜTZTEN ANSATZ BEI SCHLECHTEN SICHTVERHÄLTNISSEN
Title (fr)
SYSTÈME SUPPLÉMENTAIRE POUR UNE APPROCHE PAR SATELLITE PENDANT DES CONDITIONS DE FAIBLE VISIBILITÉ
Publication
Application
Priority
US 201816127994 A 20180911
Abstract (en)
A method of supplementing a satellite based augmentation system approach during low visibility conditions is provided. The method includes acquiring satellite range measurements and additional measurements from at least one additional onboard independent sensor. Core sigma values are assigned for satellite range measurements and for each additional measurement from the at least one additional onboard independent sensor. A weighted position solution is determined using the acquired satellite range measurements, the acquired additional measurements and the assigned core sigma values. A discriminator is applied that utilizes vehicle positions derived from the acquired satellite range measurements and from the additional measurements to determine if a fault is present in the weighted positon solution. An alert is generated if an output of the discriminator is outside a set tolerance value needed for low visibility operation.
IPC 8 full level
G01S 19/20 (2010.01); G01S 19/48 (2010.01)
CPC (source: EP US)
G01S 19/15 (2013.01 - US); G01S 19/20 (2013.01 - EP); G01S 19/485 (2020.05 - EP US); G01S 19/40 (2013.01 - US); G01S 19/45 (2013.01 - US)
Citation (search report)
- [XI] US 2017350973 A1 20171207 - DUNIK JINDRICH [CZ], et al
- [XI] US 6798377 B1 20040928 - LUPASH LAWRENCE O [US], et al
- [A] US 6281836 B1 20010828 - LUPASH LAWRENCE O [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3623846 A1 20200318; EP 3623846 B1 20230222; CA 3054850 A1 20200311; CA 3054850 C 20220621; US 11035962 B2 20210615; US 2020081137 A1 20200312
DOCDB simple family (application)
EP 19195759 A 20190905; CA 3054850 A 20190910; US 201816127994 A 20180911